Gypsum Retarder (Liquid)

Guudpoly Liquid gypsum retarder is a water-borne, vegetable protein-based, high-efficiency additive designed to precisely delay the setting time of gypsum boards with minimizing effect to their final strength. serving as a sustainable alternative to animal protein and synthetic retarders.

Related Product & Application

 
 

Vegetable Protein vs  Animal Protein

Sustainability & ethics: – Plant sources are renewable, cruelty-free, and have lower carbon footprint; animal protein relies on slaughterhouse by-products.

Consistency & odor:  Vegetable protein has uniform peptide chains, no putrid odor, and better batch-to-batch stability; animal protein may vary in quality and smell.

Safety & hygiene: – Lower risk of pathogens or contaminants; ideal for food-contact or indoor-sensitive applications.

Stable supply: – Plant raw materials are more abundant globally.

 

🌱 Core Advantages

Renewable & eco-friendly: –Derived from abundant plant sources; formaldehyde-free, non-toxic, biodegradable, and compliant with green building standards.

Very High efficient & controllable retardation: –Extends working time from 30 minutes to several hours at low dosages (typically 0.001%–0.01% by weight of gypsum), with linear and predictable setting control.

Minimizing strength loss: –Unlike some organic acid retarders, it preserves or minimally affects the final mechanical strength of gypsum products.

Excellent compatibility: –Works with natural gypsum, flue-gas desulfurization (FGD) gypsum, phosphogypsum, and other gypsum types; compatible with cellulose ethers, redispersible polymer powders, and superplasticizers.

Easy handling & dilution: – Free-flowing water solution, easy dilution by water.

Stable & eco-friendly: –Formaldehyde-free, non-toxic, non-corrosive (chloride-free), and long shelf life.

 

🧱 Key Applications

Gypsum boards & blocks: – Optimizes production line speed, reduces breakage, and ensures consistent quality.

Decorative gypsum moldings: – Provides sufficient time for detailed filling, de-airing, and molding without rush.

 

Available Grade

Grade

Chemical Base

Type

Function

Note

Application

Technical Data Sheet

Guudpoly GR40L

Natural polymer

Liquid

Retarder

high concentration

Gypsum Board

Download TDS  

Guudpoly GR20L

Natural polymer

Liquid

Retarder

popular grade

Gypsum Board

Download TDS  

Guudpoly GR16L

Natural polymer

Liquid

Retarder

customized grade

Gypsum Board

Download TDS  

 

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